Grain-binder.



PATENTED FEB. l2, 1907.

No. 843,62l6.

G.AL. PHELPS. GRAIN BINDER.

- APPL'IOA'TION FILED Nov; 22. 1906.

3 SHEETS-SHEET l.

PATBNTBD FEB-"1 21 '1907" s SHEETS-SHEET G. L. PHELPS. GRAIN BINDER.

APPLICATION FILED NOV 22, 1906.

PATENTE-PBR 12, 1907.

a SHEETS-,SHEET s.

GEORGE L. PHELPS, OF CHICAGO, ILLINOIS, ASSIGNOR TO INTERNATIONAL' HARVESTER COMPANY, A CORPORATION OF NEW JERSEY.

GRWPBINDER.

Neeliaeee.

Speeicaton of Letters Patent.

Patented. Feb. 12, 1907.

Applicatinn filed November 22,1906. Serial No. 344,559.

To all whom/ it may concern.: l

Be it known that 1Gnoncn L. Primes, a citizen of the United cago, in the lcounty of Cook and State of Illinois, have invented a new and useful Imrovernent in Grain-Binders, of .which the -ollowingis a complete speciiication.

rlhis invention relates to grain-binders of the type illustrated and described in TJnited States Patent No.-'398,466, which issued to B. I?. which the knotter-shait and needle-shalt are actuated through a crank and lever connection with an intermittently-rotating shait, this latter shaft being in operative connection with the constantly-rotating packer-shaft. Constructions of this type as heretofore made were not well adapted to apply great power where needed and higher speed where possible. The present improvement is directed to the overcoming oi such objections `and to produce a construct-ion which will be simple and highl)T ellicient. Referring to the accompanying drawings, Figure 1 represents a front end elevation of a grain-binder attachment embodying my invention. Fig. 2 is a side elevation ot' the toi'- ward end of the attachment shown in Fig. 1. Fig. 3 is a transverse horizontalsection taken on the line 3 3 of Fig. 2. Figs. 4 and 5 are diagrammatic views illustrating the dificiential motion of the knottcr-shaft with respect to its driving-shaft, Fig. 4 illustrating such motion as imparted by my improved construction, and Fig. 5 the same as nnparted by the arrangement as heretofore einployed and shown in the patent above mentioned.

In the type oi: binder herein illustrated, as will be seen in the patent to which reference has been made, the constandy-rotating packer-shaft has a clutch connection with the interinittently-rotaiing driving-shaft or other equivalent means which impart movement to the knetter-shaft, and this clutch mechanism is controlled by an)v suitable. connection with the tripping device. As these last-mentioned parts constitute no feature of the present improvement and are very well understood in the art, their inclusion in the speeiiication was not deemed necessary.

Referring to the accompanying drawings, l designates the binder-frame, only the forward end thereof being shown, and in the States, residing at Chil is journaled the needle shaft 3.

-on the crank 11.

upper branch lthereof. is journaled the knetter-shaft 2, while in the lower branch 1 To the knetter-shaft 2- is secured the ejector or discharge arms 4 and also the usual cam-gear 5, and to the needle-shalt 3 needle (i, the construction, function, and operation oi: which parts are so well known as to render further description unnecessary.

; .To the binder-frame is also secured the usual Stewart -February 26, 1889, and in `f breast-plate 7 and stripper-arni-S.

In the lower portion of the frame 1 is journalecl the driving-shaft 9 which vis an extension oi the packer-shaft, the packer-shaft not being shown` Thesaid shaft extension or driving-shaft 9 has an intermittent rotais iixed the tion imparted thereto through a suitable trip-controlled clutch mechanism, as clearly shown in the patent mentioned, but a disclosure of which is not essential to a clear understanding of the present invention.. It need only be stated in this connection that the shaft 9 or equivalent thereof has irnpartedto it an intermittent rotation from the packer-shaft or other moving part of the machine, the movement occurring Whenever a bundle of gra-in is bound and ejected. This shaft 9 imparts movement to the other elements of the binder which are directly involved in my improvement, and hence may properly be termed an interinittently-rotating driving-shaft.

On the end oi' the driving-shaft 9 is formed the crank 10, with the wrist-pin 10, while the forward end of the needle-shaft 3 terminat cs An adjustable )itman or link 12 connects t-hc cranks 10 an 11 of the driving and needle shafts, respectively, and the crank 11 is given a longer arm than that oi the crank 10, so that a complete rotation ol' the driving-shaft- 9 will cause a rocking movement of the needle-shaft 3.

In order to properly adjust the power which is applied to theI knetter-shalt 2 to the resistance met by the d ischarge-arns 4 thereon, it becomes necessary to provide a differential motion between the driving-shaft and knetter-shait. A crank 13, having the wristpin 13, is iixed to the forward end of knettershai't 2, and on'thc wrist-pin 10 of the crank 1() is mounted the lever 14, the upper end oi which connects with the wrist-pin 13 of the crank 13 through the diilcrential link 15. It is obviously necessary, in order to render op- TOO erative the construction just described to also yprovide a fulcium for the lever 14. In the arrangement heretofore employed in such type ot binder attachment a fixed ulcruin was used and in consequence the proper differential motion could not be secured or could not be applied at the desired point in the path of travel of the discharge-arms. In the'present improvement a movable tulcruni is employed, thereby accelerating or retarding to the required degree and at the proper time the movement of the said arms. A laterally-projecting support is formed on the binder-frame 1 by the outwardly-extending bracket 1G, formed, preferably, integral with the binder-frame and to which is fixed the arm 17. (See Fig. 3.) On the outer endof this arm 17 is pivotally mounted the link 18,

. while the inner end of said link pivotally connects with the lever 14, and thus forms a movable fulcrum for said lever. The connection between the link and lever is at a point substantially midway of the length of the lever. The path described by the fulcrum of the lever corresponds to the arc of a circle whose center is coincident with the pivotal center oll the link 18 on lthe arm 17 and f whose radiusis equal to the length ot-said link.

Iriorder to more clearly show the corn- )arative retardation and acceleration of the knetter-shaft 2 with the discharge-arms 4 thereon resulting from my improved construction and that resulting from, a fixed fulciuin, as in the construction of the patent of Stewart mentioned, diagrams illustrating such movement are shown in Figs. 4 and 5, Fig. 4 showing the lag or retardation in the former construction and Fig. 5 that inA the latter. In these diagrammatic views 9' represents the driving-shaft; 2', the knettershaft; 10, the wrist-pin 10', and 13 the wrist-pin 13'. The lever 14 is designated by the line 14', the differential link 15 by the line 15', and the link 18 by the line 18. 'llie arrows indicate the direction of inovenzent of the wrist-pins in their path. a, b c, 6to., ind icate the successive positions of the wrist-pin 10 at successive and equal intervals of space traversed, and a' b c', &c., indicate the corresponding positions of the wrist-pin 13u. To more clearly set foith the retardation and acceleration ot the wrist-pin 12a, the circle representing its path of travel is divided in equal paris, which are marked c" b" c", cc., and lcorrespond in nnni'bei' with the successive pcsitions a b c, ctc., of the wi 1st-pin 1(). It will be apparent from an iiispection of the diagiants that when the motion of the wristpin 13a is retarded the arc c' fi', b' c', c' d', &c., will be less than a.' li", b" c", &c., and thc amount of sncl'i lag or retardation will be indicated. by the arcs b' b", c' e", d' d", Sac. lt will be observed from an inspection of Fig. 4 that the extent of these arcs indicating the lag gradually increases up to the pcintf", the arcf'f" being the greatest. This pointf" corresponds to the position of' the dischargearms when ejeciing the bundles, and hence to' that position of the stroke where they encounter the greatest resistance. It will be understood also that when the lag is greatest the leverage is greatest, and hence the greatest power can be applied to the knotter-shatt What I claim as my invention,v and desire to secure by Letters Patent, is-

1. In a 'binder attachment for harvesters, in combination, a binder-frame, a knottershaft and a needle-shaft journaled in said frame, an intermittentlyrotating drivingshaft, a crank connection between said driving-shaft and needle-shaft, a lever having a crank connection with the driving-shaft, and a link connection with the knotter-shaft, the said lever imparting a differential motion to the knotter-shaft through said link connection a movable fulci-urn for said lever, and means for guiding said fulcrum in a curved path, substantially as and for the purpose specified.

2. In a binder attachment for harvesters, in combination, a binder-trame, a knettershaft and a needle-shaft jouinaled in said frame, an iiiteriiiittently-rotating drivingshaft, a crank connection between said driving means and needle-shaft, a lever having a ci-ank connection with the di iviiig-shain'ancl a link coinieci ion with the liiotter-shaft,'the

said lever iinpaiting a difl'eiei'itial motion to the kiiotter-shaft lthrough siiid link connection and a fulcinin for said lever adapted to more `in the aie of a circle, substantially as and for the purpose specified.

3. ln a binder attachment for harvestei's, in. combination, a binder-frame, a knettershaft and a inedle-shaft jouinaled in said frame, :in intern iitently-rotating drivingshaft, a crank connectionbetween said di'iving-shaft and needlc-sliaft, a lever having a crark comici-.i ion viitli the diiving-shaft, and a link connect ion with the knetter-shaft, the said lever iinpzir1iiiig a differential motion to the ltiiottei-shaf't lirongh said link connection, a movable fiile-inni for said lever, a laterally-project ing bracket fixed to said binderfranie, and a fnlci-nni-link pivotally mounted on said bracket and pivotally connecting' its stroke Where it encounters the greatest Io 1es1stanoe and to cause an acceleration of the nzovenent of said shaft at that portion of its trane,intermittently-otatngdriving means, revolution Where it does little Work. 5' a ever inter osed etween said driving A means and knciter-shaft, a movable llcrum GEORGE L PHELPS' for said lever, and means for guiding the said Witnesses: ulcrum to cause retardation of the niovey CHAs. BARRY, ment of the knetter-shaft at that portion of l, C.- D. OCONNELL.

4. In a binder attachment for harvesters, t in combination, a binder-frame, a knottershaft and a needle-shaft journaled n said 

